28179775

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2797}}^1$

素因数の和:2851

約数の個数: 24

約数和(自身を含む): 38858624

約数和(自身を除く): 10678849

約数列:

[1, 5, 13, 25, 31, 65, 155, 325, 403, 775, 2015, 2797, 10075, 13985, 36361, 69925, 86707, 181805, 433535, 909025, 1127191, 2167675, 5635955, 28179775]

約数ペア:

[(1, 28179775), (5, 5635955), (13, 2167675), (25, 1127191), (31, 909025), (65, 433535), (155, 181805), (325, 86707), (403, 69925), (775, 36361), (2015, 13985), (2797, 10075)]